甘薯三醇-VI，葡甘油脂酯型二聚体。

Batatins III-VI, glycolipid ester-type dimers from Ipomoea batatas.

机构信息

Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico, DF, Mexico.

出版信息

Phytochemistry. 2011 Jun;72(8):773-80. doi: 10.1016/j.phytochem.2011.03.002. Epub 2011 Mar 29.

DOI:10.1016/j.phytochem.2011.03.002

PMID:21453944

Abstract

Batatins III-VI (1-4), glycolipid ester-type dimers, were isolated from the tuberous roots of sweet potato (Ipomoea batatas) using recycle high performance liquid chromatography. Their structures were characterized by means of several high-resolution NMR and mass spectrometry techniques. These compounds are the first examples of ester-type dimers which consist of two units of the heterotetrasaccharide operculinic acid C. Each unit was esterified by a different amount and type of acid residues: (2S)-methylbutanoic, cinnamic, decanoic (capric) and dodecanoic (lauric) acids. Batatins III-VI (1-4) are an example of the presence of a large number of resin glycoside congeners in each morning glory species caused by partial acylation of their constitutive saccharide cores.

摘要

巴塔亭 III-VI（1-4）是从甘薯（Ipomoea batatas）的块根中用循环高效液相色谱法分离得到的糖脂酯型二聚体。通过多种高分辨率 NMR 和质谱技术对其结构进行了表征。这些化合物是由两个异四糖 operculinic 酸 C 单元组成的酯型二聚体的第一个例子。每个单元都被不同数量和类型的酸残基酯化：（2S）-甲基丁酸、肉桂酸、癸酸（癸酸）和十二酸（月桂酸）。巴塔亭 III-VI（1-4）是每个 morning glory 物种中存在大量树脂糖苷同系物的一个例子，这是由于其组成糖核的部分酰化。